C-Sharp Mid Example | ASP.NET C# Mid Syntax | Source Code

Posted by on Friday, April 1, 2011 · Leave a Comment 

C-Sharp Mid Example | ASP.NET C# Mid Syntax | Source Code

Purpose: – Here is a that illustrates the .

View Other C-Sharp ASP.NET Source Code Examples »

Step 1: Click on C# to Cut-n-paste code into Mid.aspx.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
 
// This example is from http://idealprogrammer.com
// It shows how you can use Mid syntax in C-Sharp ASP.NET
//****************************************************************************************
// Example #1: Mid(string, startIndex[, length])
// Returns the specified number of characters from the string starting
// at the specified position. If the length is not specified, all of the 
// characters to the end of the string are returned
//****************************************************************************************
 
public partial class StringManipulation_Mid : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
        Label1.Text = "Example #1: Mid(strField, 2, 3) ";
 
        string strField = "123456";
 
        Label2.Text = strField.Substring(1, 3); //Returns 234
 
    }
}

Step 2: Click on XML to Cut-n-paste code into Mid.aspx

< %@ Page Language="C#" AutoEventWireup="true" CodeFile="Mid.aspx.cs" Inherits="StringManipulation_Mid" %>
 
< !DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
 
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
    <title></title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
     <h1><asp:label ID="Label1" runat="server" Text="Label"></asp:label> </h1>
        <asp:label ID="Label2" runat="server" Text="Label"></asp:label><br />
    </div>
    </form>
</body>
</html>

Prerequistes:

  1. Install Visual Web Developer 2010
  2. Install SQL Server Express
  3. Download Northwind and Pubs Databases
  4. Attach Northwind Database to Databases in Sql Express
  5. Attach pubs Database to Databases in Sql Express

Notes:

  • You can build your own library of syntax examples by using same web site over and over and just add new web forms to it.

Instructions:

CS Syntax String Manipulation Mid
CS Syntax String Manipulation Mid
  1. Use Visual Web Developer 2010
  2. Create new web site;
    • Click File/New Web Site
    • Select ASP.NET Website Template
    • Select C-Sharp for Language
    • name of Web Site could be CSharp_ASPNET_Syntax.
  3. Add New folder named "StringManipulation"
    • Right-click project name in solution explorer;
    • add new folder;
    • name of folder could be: StringManipulation
  4. Add Web Form Named Mid.aspx to StringManipulation folder
    • Right-click StringManipulation folder;
    • add new item;
    • Select Web Form
    • Check place code behind in separate file
    • Web Form name could be Mid.aspx
  5. Click on C-Sharp in step 1 at the top of this page to copy code into web form Mid.aspx
  6. Click on XML in step 2 above to copy code into code-behind Mid.aspx.cs
  7. Right-click on Mid.aspx in solution explorer and select view in browser

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